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authorMichael S. Tsirkin <mst@mellanox.co.il>2005-11-28 11:19:43 -0800
committerRoland Dreier <rolandd@cisco.com>2005-11-28 11:19:43 -0800
commit187a25863fe014486ee834164776b2a587d6934d (patch)
tree918111360e352d128126bb338227ec4fb6e8afbc /drivers
parent458af5439fe7ae7d95ca14106844e61f0795166c (diff)
downloadop-kernel-dev-187a25863fe014486ee834164776b2a587d6934d.zip
op-kernel-dev-187a25863fe014486ee834164776b2a587d6934d.tar.gz
IB/mthca: reset QP's last pointers when transitioning to reset state
last pointer is not updated when QP is modified to reset state. This causes data corruption if WQEs are already posted on the queue. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index dd4e133..f9c8eb9 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -871,7 +871,10 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask)
qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL);
mthca_wq_init(&qp->sq);
+ qp->sq.last = get_send_wqe(qp, qp->sq.max - 1);
+
mthca_wq_init(&qp->rq);
+ qp->rq.last = get_recv_wqe(qp, qp->rq.max - 1);
if (mthca_is_memfree(dev)) {
*qp->sq.db = 0;
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